About the Authors
- Sarah M. Eglington
- James W. Pearce-Higgins
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* E-mail: james.pearce-higgins@bto.org
Affiliation British Trust for Ornithology, The Nunnery, Thetford, Norfolk, United Kingdom
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: SME JPH. Performed the experiments: SME JPH. Analyzed the data: SME JPH. Contributed reagents/materials/analysis tools: SME JPH. Wrote the paper: SME JPH.